Delta Kitchen Faucet Bonnet Nut Stuck

I am attempting to replace the diamond seal cartridge in my delta kitchen sink faucet but i cannot loosen the bonnet nut from the plastic base see pic no matter what i try.

Delta kitchen faucet bonnet nut stuck. Your shower experience inspired living innovations delta outlet delta recertified customer service. Customer had a 3 year old delta 9178 dst touch kitchen faucet with the diamond cartridge in it. Won t budge at all. There was a lot of calcium buildup inside once i got it off.

I have been grabbing the base with channel locks and trying to unloosen the nut with adjustable wrench. I managed to get the handle off with some force and slight twisting back and forth. The delta faucet brand delivers well made stylish faucets shower heads and other kitchen and bathroom accessories. I feel as though i am missing something obvious here.

Delta 9178 dst struck bonnet nut ran into a situation yesterday. However the bonnet will not budge when i take the pipe wrench to it. Browse now to customize your kitchen or bathroom. Handle and bonnet nut.

To remove the bonnet nut turn it in a counterclockwise direction with a wrench until the nut is free from the threads on the valve then lift the nut up and over the valve to complete the removal process. Do not pry the valve cartridge out of the body with a screwdriver. Place handle on stem and rotate counterclockwise approximately 1 4 turn after the stop has been contacted. Sink faucets bathing showering toilets bidets accessories collections new products repair parts design innovation.

The bonnet nut fits over the faucet valve and holds the valve into place. I m trying to replace the cartridge in my leaking delta monitor bathtub faucet.